弹道学报2016，Vol.28Issue(4)：75-79,85,6.
连续射击下的枪管瞬态传热模型
Transient Heat Transfer Model of Gun Barrel Under Successive Firing
摘要
Abstract
Aiming at gun erosion caused by periodic transient-thermal-shock during succession firing,the mathematical model of one-dimensional transient-heat-transfer of gun barrel was established. The finite difference equations of internal nodes and boundary nodes were derived by using energy balance method and ADI( Alternating Difference Implicit ) scheme. Based on the numerical results of the classical interior ballistics,the temperature distribution of barrel of some 12. 7 mm machine gun during 120 succession firing rounds was calculated numerically by Visual Basic programming. The temperature test was conducted by thermal infrared imager. The error of the numerical result relative to the experimental result is less than 10%,and the established model and the used algorithm are effective. The obtained change law of barrel temperature-field has great importance for the further studies of gun barrel erosion mechanism, and the result provides the reliable theory basis for the structure design and the life prediction of gun barrel.关键词
机枪/身管温度/身管烧蚀/瞬态热传导/数值仿真Key words
machine gun/gun barrel temperature/gun barrel erosion/transient heat transfer/numerical simulation分类
能源科技引用本文复制引用
冯国铜,周克栋,赫雷,王靖亚,张英琦,李峻松..连续射击下的枪管瞬态传热模型[J].弹道学报,2016,28(4):75-79,85,6.基金项目
中国人民解放军总装备部瓶颈项目 （）
